Improvement in portable and adjustable hoisting apparatus



NITED STATES PATENT OEEIcE..

GEORGE A. MYERS, OF WILLIAMSBURG, NEV YORK.

IMPROVEMENT IN PORTABLE AND ADJUSTABLE HOISTING APPARATUS.

` Specification forming part of Letters Patent No. 140,427, dated July 1, 1873; application filed May 31, 1873. l

To all whom it may concern:

Beitknown that I, GEORGE ALLEN MYERs, of Williamsburg, iu the county of Kings and State of New York, have .invented a new and useful Improvement in Portable and Adjustable Hoisting Apparatus, of which the following is a specication:

Figure l is a top view of my improved apparatus. Fig. 2 is a side view of the same, partly in section, through the line a: rv, Fig. l.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved hoisting apparatus, for tierin g goods in storehouses, and which shall be so constructed that it may be readily moved from one part of the room to another and swung around to work in any desired position. The invention consists in the clamps, one or more, the ratchet-wheel, and the double pawl, or their equivalents, in combination with the frame, drum, and gearing of a hoisting apparatus, to adapt said apparatus to be detachably and adjustably attached to the stanchions of a storehouse, as hereinafter fully described.

A represents one of the stanchions of the room,to whichare attached one or more clamps, B, which are so formed`as to lit upon the stanehions A. The clamp or clamps B are hinged at one corner or side of the stanchion A, and are secured at the opposite angle or side by a hand-screw or -other convenient fastening, so .that the clamp or clamps B can be readily detached from one stanchion and attached to another in some other part of the room. C is aframe,madein U form or other convenient shape, and to which is pivoted the drum D,around which the hoisting-rope is wound, and to the ends of its journals are attached a larger and a smaller gear-wheel, E. In the frame O also works the shaft F, to which areattached a smaller anda larger gear-wheel, G, in such position that when (pie of the gear-wheels G meshes into one of the gear-wheels E the other pair will be out of gear, so that by sliding the shaft F longitudinally the apparatus may be adjusted to Work with speed or power, as may be desired. The shaft F is held in position when adjusted by hooks H pivoted to the frame C, and which drop into grooves in the said shaft F. To the ends of the shaft F are attached the cranks I by which the power is applied. To the frame C is attached or upon it is formed anarm, J, by which it is pivoted` by a pin or bolt, K, to lugs L formed upon the clamp or clamps B. The arm J is made with a wide bearing, so that the frame C and its attachments may be held horizontal. This construct-ion enables the frame O to be swung around so as to work in various positions, as may be required in tiering the goods. To the clamp or clamps B is attached a ratchet-wheel, M,upon the teeth of which takes hold the double pawl N, which is hinged or pivoted to the frame O, so that it may quickly and conveniently be thrown into and out of gear with the ratchet-wheel M. The teeth of the ratchetwheel M and the enga-ging ends of th'e pawl N are so formed as to hold the frame C from swinging in either direction.

ln using the apparatus the rope from the drum D is passed around the pulley of a block, which is connect-ed with and supported from the joists or rafters by means of a clamp something like an ice-ton gs, so that the greater the weightot the package beinghandled the firmer the lsaid clamp may hold.

With this apparatus the goods may be tiered rapidly and with a comparatively small amount of labor, the apparatus being readily adjusted as the position of the tiers may require.

If desired, the hinge of the clamp or clamps B may be omitted and the two parts eonnected at both ends by bolts, so that the said clamps may be readily adjusted to stanchions of various sizes.

Haviu g thus described my invention, I claim as new and desire to secure by Letters .Pat ent- The clamps B, one or more, the ratchet-wheel M, and the double pawl N, or their equivalents, in combination with the fra-me, drum, and gearing of a hoisting apparatus, to adapt said apparatus to be detachably and adj ustably attached to the stanchions of a storehouse, sub- Vstantially as herein shown and described. 

